CN115044301A - High-wear-resistance ultraviolet curing transfer adhesive for outer texture and preparation method thereof - Google Patents

High-wear-resistance ultraviolet curing transfer adhesive for outer texture and preparation method thereof Download PDF

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Publication number
CN115044301A
CN115044301A CN202210757790.2A CN202210757790A CN115044301A CN 115044301 A CN115044301 A CN 115044301A CN 202210757790 A CN202210757790 A CN 202210757790A CN 115044301 A CN115044301 A CN 115044301A
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China
Prior art keywords
ultraviolet curing
stirring
texture
abrasion resistance
auxiliary agent
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Pending
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CN202210757790.2A
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Chinese (zh)
Inventor
莫智权
陶林华
赖忠财
余秋丽
熊运寿
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Huizhou Quanshengde New Material Co ltd
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Huizhou Quanshengde New Material Co ltd
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Priority to CN202210757790.2A priority Critical patent/CN115044301A/en
Publication of CN115044301A publication Critical patent/CN115044301A/en
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J4/00Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
    • C09J4/06Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J167/00Adhesives based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Adhesives based on derivatives of such polymers
    • C09J167/06Unsaturated polyesters having carbon-to-carbon unsaturation
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J175/00Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
    • C09J175/04Polyurethanes
    • C09J175/14Polyurethanes having carbon-to-carbon unsaturated bonds

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

The invention discloses a high wear-resistant ultraviolet curing transfer printing adhesive for outer textures, which comprises 2-5 wt% of a photoinitiator, 10-15 wt% of a reactive diluent, 50-80 wt% of an oligomer and 0-5 wt% of an auxiliary agent. The invention also provides a preparation method of the ultraviolet curing transfer printing glue with high wear resistance for the outer texture. The invention has the beneficial effects that: the high-wear-resistance ultraviolet curing transfer printing glue for the outer texture can be subjected to LED pre-curing, has good tensile property and can be subjected to high-pressure forming.

Description

High-wear-resistance ultraviolet curing transfer adhesive for outer texture and preparation method thereof
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of transfer printing glue, in particular to high-wear-resistance ultraviolet curing transfer printing glue for outer textures and a preparation method thereof.
[ background of the invention ]
With the progress of the 5G communication era and the use of wireless charging technology, the metal rear cover is gradually replaced. Moreover, under the situation that the performance of the electronic product is competitive, merchants and consumers gradually shift the sight to the appearance, and the traditional inner texture cannot meet the requirements of the consumers. The intense competition in the market promotes the process of the rear cover plate of the electronic product to develop forward. Wherein, the external texture rear cover is a new technology which is very popular in the electronic industry at present. Most of the textured plastic rear covers take the plastics such as a PC/PMMA composite board, a PMMA board, a PC board and the like as base materials, the traditional plastic rear covers are firstly manufactured on the back surfaces of the boards according to a normal process, and finally the ultraviolet light glue of the invention is transferred on the front surfaces of the boards to manufacture surface textures.
In implementing the present invention, the inventors found that the following problems exist in the related art: the existing transfer printing glue layer can not be subjected to wear resistance tests of steel wool, rubber, alcohol, paper tape and the like. In addition, the bending and surface hardness can not reach the standard, and the finished product has the problems of delamination phenomenon and the like of a transfer printing glue layer and a plate after ultraviolet aging resistance test or high temperature and high humidity test.
[ summary of the invention ]
The invention discloses a high-wear-resistance ultraviolet curing transfer printing adhesive for outer textures and a preparation method thereof, which can solve the technical problems related to the background technology.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the high wear resistant ultraviolet curing transfer printing glue for outer texture consists of photoinitiator 2-5 wt%, active diluent 10-15 wt%, oligomer 50-80 wt% and assistant 0-5 wt%.
As a preferred improvement of the invention, the photoinitiator is one or more of diphenyl- (2,4, 6-trimethylbenzoyl) oxyphosphorus, 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide, phenylbis (2,4, 6-trimethylbenzoyl) phosphine oxide, 1-hydroxycyclohexylphenylketone, 2-hydroxy-4- (2-hydroxyethoxy) -2-methylpropiophenone, 2-hydroxy-2-methyl-1- [4- (2-hydroxyethoxy) phenyl ] -1-propanone, 2-isopropylthioxanthone.
As a preferred improvement of the invention, the reactive diluent is one or more of N, N-Dimethylacrylamide (DMAA), 2-phenoxyethyl acrylate (PHEA), isobornyl acrylate (IBOA), 1, 6-hexanediol diacrylate (HDDA), 1, 4-butanediol diacrylate (BDDA), tripropylene glycol diacrylate (TPGDA), dipropylene glycol diacrylate (DPGDA), tricyclodecane dimethanol diacrylate (TCDDA), pentaerythritol triacrylate (PETA), 3 (ethoxy) trimethylolpropane triacrylate (TMP (EO)3TA) trimethylolpropane triacrylate (TMPTA), dipentaerythritol hexaacrylate (DPHA).
As a preferred improvement of the invention, the oligomer is one or more of a pure acrylate resin, a urethane acrylate resin, a polyester acrylate resin, an acrylate functionalized polyacrylate resin.
As a preferable improvement of the present invention, the auxiliary is one or more of fluorine or silicon modification auxiliary optical absorbent, coupling agent, light stabilizer, leveling agent, fluorine or silicon modification auxiliary.
The invention also provides a preparation method of the high-wear-resistance ultraviolet curing transfer printing glue for the outer texture, which comprises the following steps:
step one, adding a photoinitiator and an active diluent into a reaction kettle, and then stirring for the first time;
step two, after the first time of uniform stirring, continuously adding the oligomer and the auxiliary agent into the reaction kettle for second time of stirring;
and step three, filtering, shading, sealing and storing the ultraviolet curing transfer printing glue after the secondary stirring is carried out uniformly.
As a preferred improvement of the invention, the first stirring is at a rate of 300-500r/min for 10-30 min.
As a preferable improvement of the invention, the second stirring is carried out at the speed of 1000r/min for 0.5 to 2 hours.
The invention has the beneficial effects that: the adhesive layer has high hardness, good wear resistance, strong adhesive force and excellent bending resistance, and moreover, the aging resistance and the cold and hot impact resistance also meet the expectation.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of the technical solutions by those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a high wear-resistant ultraviolet curing transfer printing adhesive for outer textures, which comprises 2-5% of a photoinitiator, 10-15% of a reactive diluent, 50-80% of an oligomer and 0-5% of an auxiliary agent in percentage by weight.
Specifically, the photoinitiator is one or more of diphenyl- (2,4, 6-trimethylbenzoyl) oxyphosphorus, 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide, phenyl bis (2,4, 6-trimethylbenzoyl) phosphine oxide, 1-hydroxycyclohexyl phenyl ketone, 2-hydroxy-4- (2-hydroxyethoxy) -2-methyl phenyl propanone, 2-hydroxy-2-methyl-1- [4- (2-hydroxyethoxy) phenyl ] -1-propanone and 2-isopropyl thioxanthone. The photoinitiator absorbs ultraviolet light to generate free radicals, unsaturated double bonds in a system are initiated by the free radicals to generate free radical polymerization, and the system is polymerized and crosslinked to form a macromolecule.
The active diluent is one or more of N, N-Dimethylacrylamide (DMAA), 2-phenoxyethyl acrylate (PHEA), isobornyl acrylate (IBOA), 1, 6-hexanediol diacrylate (HDDA), 1, 4-butanediol diacrylate (BDDA), tripropylene glycol diacrylate (TPGDA), dipropylene glycol diacrylate (DPGDA), tricyclodecane dimethanol diacrylate (TCDDA), pentaerythritol triacrylate (PETA), 3 (ethoxy) trimethylolpropane triacrylate (TMP (EO)3TA), trimethylolpropane triacrylate (TMPTA) and dipentaerythritol hexaacrylate (DPHA). The reactive diluent is compounded by adopting single functionality, double optical energy and multiple optical energy to obtain better wettability.
The oligomer is one or more of pure acrylate resin, polyurethane acrylate resin, polyester acrylate resin, acrylate functionalized polyacrylate resin. Specifically, the oligomer with the functionality of bifunctionality and multiple optical functionalities is compounded, and the oligomer has the advantages of fast curing reaction, good adhesion with a base material and good wear resistance.
The auxiliary agent is one or more of a light absorbent, a coupling agent, a light stabilizer, a flatting agent and a fluorine or silicon modification auxiliary agent, and can improve the surface antifouling effect.
The invention also provides a preparation method of the high-wear-resistance ultraviolet curing transfer printing glue for the outer texture, which comprises the following steps:
step one, adding a photoinitiator and an active diluent into a reaction kettle, and then stirring for the first time;
step two, after the first time of uniform stirring, continuously adding the oligomer and the auxiliary agent into the reaction kettle for second time of stirring;
and step three, filtering, shading, sealing and storing the ultraviolet curing transfer printing glue after the secondary stirring is carried out uniformly.
As a preferred improvement of the invention, the first stirring is at a rate of 300-500r/min for 10-30 min.
As a preferred improvement of the invention, the second stirring is carried out at a rate of 1000r/min for 0.5 to 2 hours.
The ultraviolet curing transfer printing adhesive prepared by the invention is tested by experiments, and the results are shown in the following table 1:
TABLE 1
Figure BDA0003720120590000031
Figure BDA0003720120590000041
The performance test comparison of the ultraviolet curing transfer printing adhesive prepared by the invention and the existing on-sale transfer printing adhesive is shown in Table 2:
TABLE 2
Figure BDA0003720120590000042
As can be seen from table 2, comparative examples 1 and 2 are currently available uv curable transfer pastes: NG is unqualified, and OK is qualified.
The invention has the beneficial effects that: the adhesive layer has high hardness, good wear resistance, strong adhesive force and excellent bending resistance, and moreover, the aging resistance and the cold and hot impact resistance also meet the expectation.
While embodiments of the invention have been disclosed above, it is not limited to the applications set forth in the description and embodiments, which are fully applicable to various fields of endeavor for which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described without departing from the generic concept as defined by the claims and the equivalents thereof.

Claims (8)

1. The high wear resistant ultraviolet curing transfer printing glue for outer texture is characterized by comprising 2-5 wt% of photoinitiator, 10-15 wt% of reactive diluent, 50-80 wt% of oligomer and 0-5 wt% of auxiliary agent.
2. The UV-curable transfer paste for high abrasion resistance of outer texture according to claim 1, wherein the photoinitiator is one or more of diphenyl- (2,4, 6-trimethylbenzoyl) oxyphosphorus, 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide, phenylbis (2,4, 6-trimethylbenzoyl) phosphine oxide, 1-hydroxycyclohexylphenylketone, 2-hydroxy-4- (2-hydroxyethoxy) -2-methylpropiophenone, 2-hydroxy-2-methyl-1- [4- (2-hydroxyethoxy) phenyl ] -1-propanone, and 2-isopropylthioxanthone.
3. The UV curable transfer adhesive for exterior texture high abrasion resistance according to claim 1, wherein the reactive diluent is one or more of N, N-dimethylacrylamide, 2-phenoxyethyl acrylate, isobornyl acrylate, 1, 6-hexanediol diacrylate, 1, 4-butanediol diacrylate, tripropylene glycol diacrylate, dipropylene glycol diacrylate, tricyclodecane dimethanol diacrylate, pentaerythritol triacrylate, 3 (ethoxy) trimethylolpropane triacrylate (TMP (EO)3TA) trimethylolpropane triacrylate, dipentaerythritol hexaacrylate.
4. The UV-curable transfer adhesive for exterior texture with high abrasion resistance according to claim 1, wherein the oligomer is one or more of pure acrylate resin, urethane acrylate resin, polyester acrylate resin and acrylate functionalized polyacrylate resin.
5. The UV-curable transfer adhesive with high abrasion resistance for outer textures of claim 1, wherein the auxiliary agent is one or more of a light absorber, a coupling agent, a light stabilizer, a leveling agent, a fluorine or silicon modification auxiliary agent.
6. The preparation method of the ultraviolet curing transfer glue for the outer texture with high wear resistance according to any one of claims 1 to 5, characterized by comprising the following steps:
step one, adding a photoinitiator and an active diluent into a reaction kettle, and then stirring for the first time;
step two, after the first time of uniform stirring, continuously adding the oligomer and the auxiliary agent into the reaction kettle for second time of stirring;
and step three, filtering, shading, sealing and storing the ultraviolet curing transfer printing adhesive after the second stirring is carried out uniformly.
7. The method as claimed in claim 6, wherein the first stirring is at a rate of 300-500r/min for 10-30 min.
8. The method for preparing the ultraviolet curing transfer glue with high abrasion resistance for the outer texture as claimed in claim 6, wherein the second stirring is carried out at a speed of 1000r/min for 0.5-2 h.
CN202210757790.2A 2022-06-29 2022-06-29 High-wear-resistance ultraviolet curing transfer adhesive for outer texture and preparation method thereof Pending CN115044301A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115403996A (en) * 2022-09-05 2022-11-29 惠州市全胜德新材料有限公司 UV external texture spraying glue and application method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101942277A (en) * 2010-09-02 2011-01-12 东莞市贝特利新材料有限公司 Ultraviolet curing transfer adhesive
CN111334242A (en) * 2020-04-29 2020-06-26 东莞市贝特利新材料有限公司 Ultraviolet curing transfer adhesive for 3D molding and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101942277A (en) * 2010-09-02 2011-01-12 东莞市贝特利新材料有限公司 Ultraviolet curing transfer adhesive
CN111334242A (en) * 2020-04-29 2020-06-26 东莞市贝特利新材料有限公司 Ultraviolet curing transfer adhesive for 3D molding and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115403996A (en) * 2022-09-05 2022-11-29 惠州市全胜德新材料有限公司 UV external texture spraying glue and application method thereof

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